I use my start bar every day but that feature is not the reason why i haven't changed yet. I personally don't like being forced to have 2 operation systems. I like some of the design choices in windows 8, especially the minimalistic look but metro is the biggest and most hated feature i have against the OS. I've never liked the idea about having everything universal, which is what they have done by having 2 operation systems to be used on either mobile, tablet or pc.
I would really like a new phone although i find it to be an tremendous task, since we're not getting smartphones anymore, we're getting phablets. I'll probably get the new iphone 5S because it's still 4 inches which is my limit in term of size. I really like the nokia lumia but it's just too big and not comfortable to hold like the rest of the larger smartphones/phablets.